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<title>class Racc::StateTransitionTableGenerator - racc: Ruby Standard Library Documentation</title>


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  <h3>Methods</h3>

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    <li ><a href="#method-c-new">::new</a>
    <li ><a href="#method-i-act2actid">#act2actid</a>
    <li ><a href="#method-i-addent">#addent</a>
    <li ><a href="#method-i-gen_action_tables">#gen_action_tables</a>
    <li ><a href="#method-i-gen_goto_tables">#gen_goto_tables</a>
    <li ><a href="#method-i-generate">#generate</a>
    <li ><a href="#method-i-mkmapexp">#mkmapexp</a>
    <li ><a href="#method-i-reduce_table">#reduce_table</a>
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    <main role="main" aria-labelledby="class-Racc::StateTransitionTableGenerator">
    <h1 id="class-Racc::StateTransitionTableGenerator" class="class">
      class Racc::StateTransitionTableGenerator
    </h1>

    <section class="description">
    
    </section>

      <section id="5Buntitled-5D" class="documentation-section">


      <section class="constants-list">
      <header>
      <h3>Constants</h3>
      </header>
      <dl>
          <dt id="RE_DUP_MAX">RE_DUP_MAX
          <dd>
        </dl>
        </section>



                <section id="public-class-5Buntitled-5D-method-details" class="method-section">
                <header>
                <h3>Public Class Methods</h3>
                </header>

                  <div id="method-c-new" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">new</span><span
                                class="method-args">(states)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="new-source">
            <pre><span class="ruby-comment"># File racc-1.7.1/lib/racc/statetransitiontable.rb, line 65</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">initialize</span>(<span class="ruby-identifier">states</span>)
  <span class="ruby-ivar">@states</span> = <span class="ruby-identifier">states</span>
  <span class="ruby-ivar">@grammar</span> = <span class="ruby-identifier">states</span>.<span class="ruby-identifier">grammar</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                          </section>

                <section id="public-instance-5Buntitled-5D-method-details" class="method-section">
                <header>
                <h3>Public Instance Methods</h3>
                </header>

                  <div id="method-i-act2actid" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">act2actid</span><span
                                class="method-args">(act)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="act2actid-source">
            <pre><span class="ruby-comment"># File racc-1.7.1/lib/racc/statetransitiontable.rb, line 247</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">act2actid</span>(<span class="ruby-identifier">act</span>)
  <span class="ruby-keyword">case</span> <span class="ruby-identifier">act</span>
  <span class="ruby-keyword">when</span> <span class="ruby-constant">Shift</span>  <span class="ruby-keyword">then</span> <span class="ruby-identifier">act</span>.<span class="ruby-identifier">goto_id</span>
  <span class="ruby-keyword">when</span> <span class="ruby-constant">Reduce</span> <span class="ruby-keyword">then</span> <span class="ruby-operator">-</span><span class="ruby-identifier">act</span>.<span class="ruby-identifier">ruleid</span>
  <span class="ruby-keyword">when</span> <span class="ruby-constant">Accept</span> <span class="ruby-keyword">then</span> <span class="ruby-ivar">@states</span>.<span class="ruby-identifier">shift_n</span>
  <span class="ruby-keyword">when</span> <span class="ruby-constant">Error</span>  <span class="ruby-keyword">then</span> <span class="ruby-ivar">@states</span>.<span class="ruby-identifier">reduce_n</span> <span class="ruby-operator">*</span> <span class="ruby-value">-1</span>
  <span class="ruby-keyword">else</span>
    <span class="ruby-identifier">raise</span> <span class="ruby-node">&quot;racc: fatal: wrong act type #{act.class} in action table&quot;</span>
  <span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-addent" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">addent</span><span
                                class="method-args">(all, arr, chkval, ptr)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="addent-source">
            <pre><span class="ruby-comment"># File racc-1.7.1/lib/racc/statetransitiontable.rb, line 169</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">addent</span>(<span class="ruby-identifier">all</span>, <span class="ruby-identifier">arr</span>, <span class="ruby-identifier">chkval</span>, <span class="ruby-identifier">ptr</span>)
  <span class="ruby-identifier">max</span> = <span class="ruby-identifier">arr</span>.<span class="ruby-identifier">size</span>
  <span class="ruby-identifier">min</span> = <span class="ruby-keyword">nil</span>
  <span class="ruby-identifier">arr</span>.<span class="ruby-identifier">each_with_index</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">item</span>, <span class="ruby-identifier">idx</span><span class="ruby-operator">|</span>
    <span class="ruby-keyword">if</span> <span class="ruby-identifier">item</span>
      <span class="ruby-identifier">min</span> <span class="ruby-operator">||=</span> <span class="ruby-identifier">idx</span>
    <span class="ruby-keyword">end</span>
  <span class="ruby-keyword">end</span>
  <span class="ruby-identifier">ptr</span>.<span class="ruby-identifier">push</span>(<span class="ruby-value">-7777</span>)    <span class="ruby-comment"># mark</span>
  <span class="ruby-identifier">arr</span> = <span class="ruby-identifier">arr</span>[<span class="ruby-identifier">min</span><span class="ruby-operator">...</span><span class="ruby-identifier">max</span>]
  <span class="ruby-identifier">all</span>.<span class="ruby-identifier">push</span> [<span class="ruby-identifier">arr</span>, <span class="ruby-identifier">chkval</span>, <span class="ruby-identifier">mkmapexp</span>(<span class="ruby-identifier">arr</span>), <span class="ruby-identifier">min</span>, <span class="ruby-identifier">ptr</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">-</span> <span class="ruby-value">1</span>]
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-gen_action_tables" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">gen_action_tables</span><span
                                class="method-args">(t, states)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="gen_action_tables-source">
            <pre><span class="ruby-comment"># File racc-1.7.1/lib/racc/statetransitiontable.rb, line 105</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">gen_action_tables</span>(<span class="ruby-identifier">t</span>, <span class="ruby-identifier">states</span>)
  <span class="ruby-identifier">t</span>.<span class="ruby-identifier">action_table</span> = <span class="ruby-identifier">yytable</span>  = []
  <span class="ruby-identifier">t</span>.<span class="ruby-identifier">action_check</span> = <span class="ruby-identifier">yycheck</span>  = []
  <span class="ruby-identifier">t</span>.<span class="ruby-identifier">action_default</span> = <span class="ruby-identifier">yydefact</span> = []
  <span class="ruby-identifier">t</span>.<span class="ruby-identifier">action_pointer</span> = <span class="ruby-identifier">yypact</span>   = []
  <span class="ruby-identifier">e1</span> = []
  <span class="ruby-identifier">e2</span> = []
  <span class="ruby-identifier">states</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">state</span><span class="ruby-operator">|</span>
    <span class="ruby-identifier">yydefact</span>.<span class="ruby-identifier">push</span> <span class="ruby-identifier">act2actid</span>(<span class="ruby-identifier">state</span>.<span class="ruby-identifier">defact</span>)
    <span class="ruby-keyword">if</span> <span class="ruby-identifier">state</span>.<span class="ruby-identifier">action</span>.<span class="ruby-identifier">empty?</span>
      <span class="ruby-identifier">yypact</span>.<span class="ruby-identifier">push</span> <span class="ruby-keyword">nil</span>
      <span class="ruby-keyword">next</span>
    <span class="ruby-keyword">end</span>
    <span class="ruby-identifier">vector</span> = []
    <span class="ruby-identifier">state</span>.<span class="ruby-identifier">action</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">tok</span>, <span class="ruby-identifier">act</span><span class="ruby-operator">|</span>
      <span class="ruby-identifier">vector</span>[<span class="ruby-identifier">tok</span>.<span class="ruby-identifier">ident</span>] = <span class="ruby-identifier">act2actid</span>(<span class="ruby-identifier">act</span>)
    <span class="ruby-keyword">end</span>
    <span class="ruby-identifier">addent</span> <span class="ruby-identifier">e1</span>, <span class="ruby-identifier">vector</span>, <span class="ruby-identifier">state</span>.<span class="ruby-identifier">ident</span>, <span class="ruby-identifier">yypact</span>
  <span class="ruby-keyword">end</span>
  <span class="ruby-identifier">set_table</span> <span class="ruby-identifier">e1</span>, <span class="ruby-identifier">e2</span>, <span class="ruby-identifier">yytable</span>, <span class="ruby-identifier">yycheck</span>, <span class="ruby-identifier">yypact</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-gen_goto_tables" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">gen_goto_tables</span><span
                                class="method-args">(t, grammar)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="gen_goto_tables-source">
            <pre><span class="ruby-comment"># File racc-1.7.1/lib/racc/statetransitiontable.rb, line 127</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">gen_goto_tables</span>(<span class="ruby-identifier">t</span>, <span class="ruby-identifier">grammar</span>)
  <span class="ruby-identifier">t</span>.<span class="ruby-identifier">goto_table</span>   = <span class="ruby-identifier">yytable2</span>  = []
  <span class="ruby-identifier">t</span>.<span class="ruby-identifier">goto_check</span>   = <span class="ruby-identifier">yycheck2</span>  = []
  <span class="ruby-identifier">t</span>.<span class="ruby-identifier">goto_pointer</span> = <span class="ruby-identifier">yypgoto</span>   = []
  <span class="ruby-identifier">t</span>.<span class="ruby-identifier">goto_default</span> = <span class="ruby-identifier">yydefgoto</span> = []
  <span class="ruby-identifier">e1</span> = []
  <span class="ruby-identifier">e2</span> = []
  <span class="ruby-identifier">grammar</span>.<span class="ruby-identifier">each_nonterminal</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">tok</span><span class="ruby-operator">|</span>
    <span class="ruby-identifier">tmp</span> = []

    <span class="ruby-comment"># decide default</span>
    <span class="ruby-identifier">freq</span> = <span class="ruby-constant">Array</span>.<span class="ruby-identifier">new</span>(<span class="ruby-ivar">@states</span>.<span class="ruby-identifier">size</span>, <span class="ruby-value">0</span>)
    <span class="ruby-ivar">@states</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">state</span><span class="ruby-operator">|</span>
      <span class="ruby-identifier">st</span> = <span class="ruby-identifier">state</span>.<span class="ruby-identifier">goto_table</span>[<span class="ruby-identifier">tok</span>]
      <span class="ruby-keyword">if</span> <span class="ruby-identifier">st</span>
        <span class="ruby-identifier">st</span> = <span class="ruby-identifier">st</span>.<span class="ruby-identifier">ident</span>
        <span class="ruby-identifier">freq</span>[<span class="ruby-identifier">st</span>] <span class="ruby-operator">+=</span> <span class="ruby-value">1</span>
      <span class="ruby-keyword">end</span>
      <span class="ruby-identifier">tmp</span>[<span class="ruby-identifier">state</span>.<span class="ruby-identifier">ident</span>] = <span class="ruby-identifier">st</span>
    <span class="ruby-keyword">end</span>
    <span class="ruby-identifier">max</span> = <span class="ruby-identifier">freq</span>.<span class="ruby-identifier">max</span>
    <span class="ruby-keyword">if</span> <span class="ruby-identifier">max</span> <span class="ruby-operator">&gt;</span> <span class="ruby-value">1</span>
      <span class="ruby-identifier">default</span> = <span class="ruby-identifier">freq</span>.<span class="ruby-identifier">index</span>(<span class="ruby-identifier">max</span>)
      <span class="ruby-identifier">tmp</span>.<span class="ruby-identifier">map!</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">i</span><span class="ruby-operator">|</span> <span class="ruby-identifier">default</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">i</span> <span class="ruby-operator">?</span> <span class="ruby-keyword">nil</span> <span class="ruby-operator">:</span> <span class="ruby-identifier">i</span> }
    <span class="ruby-keyword">else</span>
      <span class="ruby-identifier">default</span> = <span class="ruby-keyword">nil</span>
    <span class="ruby-keyword">end</span>
    <span class="ruby-identifier">yydefgoto</span>.<span class="ruby-identifier">push</span> <span class="ruby-identifier">default</span>

    <span class="ruby-comment"># delete default value</span>
    <span class="ruby-identifier">tmp</span>.<span class="ruby-identifier">pop</span> <span class="ruby-keyword">until</span> <span class="ruby-identifier">tmp</span>.<span class="ruby-identifier">last</span> <span class="ruby-keyword">or</span> <span class="ruby-identifier">tmp</span>.<span class="ruby-identifier">empty?</span>
    <span class="ruby-keyword">if</span> <span class="ruby-identifier">tmp</span>.<span class="ruby-identifier">compact</span>.<span class="ruby-identifier">empty?</span>
      <span class="ruby-comment"># only default</span>
      <span class="ruby-identifier">yypgoto</span>.<span class="ruby-identifier">push</span> <span class="ruby-keyword">nil</span>
      <span class="ruby-keyword">next</span>
    <span class="ruby-keyword">end</span>

    <span class="ruby-identifier">addent</span> <span class="ruby-identifier">e1</span>, <span class="ruby-identifier">tmp</span>, (<span class="ruby-identifier">tok</span>.<span class="ruby-identifier">ident</span> <span class="ruby-operator">-</span> <span class="ruby-identifier">grammar</span>.<span class="ruby-identifier">nonterminal_base</span>), <span class="ruby-identifier">yypgoto</span>
  <span class="ruby-keyword">end</span>
  <span class="ruby-identifier">set_table</span> <span class="ruby-identifier">e1</span>, <span class="ruby-identifier">e2</span>, <span class="ruby-identifier">yytable2</span>, <span class="ruby-identifier">yycheck2</span>, <span class="ruby-identifier">yypgoto</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-generate" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">generate</span><span
                                class="method-args">()</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="generate-source">
            <pre><span class="ruby-comment"># File racc-1.7.1/lib/racc/statetransitiontable.rb, line 70</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">generate</span>
  <span class="ruby-identifier">t</span> = <span class="ruby-constant">StateTransitionTable</span>.<span class="ruby-identifier">new</span>(<span class="ruby-ivar">@states</span>)
  <span class="ruby-identifier">gen_action_tables</span> <span class="ruby-identifier">t</span>, <span class="ruby-ivar">@states</span>
  <span class="ruby-identifier">gen_goto_tables</span> <span class="ruby-identifier">t</span>, <span class="ruby-ivar">@grammar</span>
  <span class="ruby-identifier">t</span>.<span class="ruby-identifier">token_table</span> = <span class="ruby-identifier">token_table</span>(<span class="ruby-ivar">@grammar</span>)
  <span class="ruby-identifier">t</span>.<span class="ruby-identifier">reduce_table</span> = <span class="ruby-identifier">reduce_table</span>(<span class="ruby-ivar">@grammar</span>)
  <span class="ruby-identifier">t</span>.<span class="ruby-identifier">reduce_n</span> = <span class="ruby-ivar">@states</span>.<span class="ruby-identifier">reduce_n</span>
  <span class="ruby-identifier">t</span>.<span class="ruby-identifier">shift_n</span> = <span class="ruby-ivar">@states</span>.<span class="ruby-identifier">shift_n</span>
  <span class="ruby-identifier">t</span>.<span class="ruby-identifier">nt_base</span> = <span class="ruby-ivar">@grammar</span>.<span class="ruby-identifier">nonterminal_base</span>
  <span class="ruby-identifier">t</span>.<span class="ruby-identifier">token_to_s_table</span> = <span class="ruby-ivar">@grammar</span>.<span class="ruby-identifier">symbols</span>.<span class="ruby-identifier">map</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">sym</span><span class="ruby-operator">|</span> <span class="ruby-identifier">sym</span>.<span class="ruby-identifier">to_s</span> }
  <span class="ruby-identifier">t</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-mkmapexp" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">mkmapexp</span><span
                                class="method-args">(arr)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="mkmapexp-source">
            <pre><span class="ruby-comment"># File racc-1.7.1/lib/racc/statetransitiontable.rb, line 191</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">mkmapexp</span>(<span class="ruby-identifier">arr</span>)
  <span class="ruby-identifier">i</span> = <span class="ruby-identifier">ii</span> = <span class="ruby-value">0</span>
  <span class="ruby-identifier">as</span> = <span class="ruby-identifier">arr</span>.<span class="ruby-identifier">size</span>
  <span class="ruby-identifier">map</span> = <span class="ruby-constant">String</span>.<span class="ruby-identifier">new</span>
  <span class="ruby-identifier">maxdup</span> = <span class="ruby-constant">RE_DUP_MAX</span>
  <span class="ruby-identifier">curr</span> = <span class="ruby-keyword">nil</span>
  <span class="ruby-keyword">while</span> <span class="ruby-identifier">i</span> <span class="ruby-operator">&lt;</span> <span class="ruby-identifier">as</span>
    <span class="ruby-identifier">ii</span> = <span class="ruby-identifier">i</span> <span class="ruby-operator">+</span> <span class="ruby-value">1</span>
    <span class="ruby-keyword">if</span> <span class="ruby-identifier">arr</span>[<span class="ruby-identifier">i</span>]
      <span class="ruby-identifier">ii</span> <span class="ruby-operator">+=</span> <span class="ruby-value">1</span> <span class="ruby-keyword">while</span> <span class="ruby-identifier">ii</span> <span class="ruby-operator">&lt;</span> <span class="ruby-identifier">as</span> <span class="ruby-keyword">and</span> <span class="ruby-identifier">arr</span>[<span class="ruby-identifier">ii</span>]
      <span class="ruby-identifier">curr</span> = <span class="ruby-string">&#39;-&#39;</span>
    <span class="ruby-keyword">else</span>
      <span class="ruby-identifier">ii</span> <span class="ruby-operator">+=</span> <span class="ruby-value">1</span> <span class="ruby-keyword">while</span> <span class="ruby-identifier">ii</span> <span class="ruby-operator">&lt;</span> <span class="ruby-identifier">as</span> <span class="ruby-keyword">and</span> <span class="ruby-keyword">not</span> <span class="ruby-identifier">arr</span>[<span class="ruby-identifier">ii</span>]
      <span class="ruby-identifier">curr</span> = <span class="ruby-string">&#39;.&#39;</span>
    <span class="ruby-keyword">end</span>

    <span class="ruby-identifier">offset</span> = <span class="ruby-identifier">ii</span> <span class="ruby-operator">-</span> <span class="ruby-identifier">i</span>
    <span class="ruby-keyword">if</span> <span class="ruby-identifier">offset</span> <span class="ruby-operator">==</span> <span class="ruby-value">1</span>
      <span class="ruby-identifier">map</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">curr</span>
    <span class="ruby-keyword">else</span>
      <span class="ruby-keyword">while</span> <span class="ruby-identifier">offset</span> <span class="ruby-operator">&gt;</span> <span class="ruby-identifier">maxdup</span>
        <span class="ruby-identifier">map</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-node">&quot;#{curr}{#{maxdup}}&quot;</span>
        <span class="ruby-identifier">offset</span> <span class="ruby-operator">-=</span> <span class="ruby-identifier">maxdup</span>
      <span class="ruby-keyword">end</span>
      <span class="ruby-identifier">map</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-node">&quot;#{curr}{#{offset}}&quot;</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">offset</span> <span class="ruby-operator">&gt;</span> <span class="ruby-value">1</span>
    <span class="ruby-keyword">end</span>
    <span class="ruby-identifier">i</span> = <span class="ruby-identifier">ii</span>
  <span class="ruby-keyword">end</span>
  <span class="ruby-constant">Regexp</span>.<span class="ruby-identifier">compile</span>(<span class="ruby-identifier">map</span>, <span class="ruby-constant">Regexp</span><span class="ruby-operator">::</span><span class="ruby-constant">NOENCODING</span>)
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-reduce_table" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">reduce_table</span><span
                                class="method-args">(grammar)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="reduce_table-source">
            <pre><span class="ruby-comment"># File racc-1.7.1/lib/racc/statetransitiontable.rb, line 83</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">reduce_table</span>(<span class="ruby-identifier">grammar</span>)
  <span class="ruby-identifier">t</span> = [<span class="ruby-value">0</span>, <span class="ruby-value">0</span>, <span class="ruby-value">:racc_error</span>]
  <span class="ruby-identifier">grammar</span>.<span class="ruby-identifier">each_with_index</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">rule</span>, <span class="ruby-identifier">idx</span><span class="ruby-operator">|</span>
    <span class="ruby-keyword">next</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">idx</span> <span class="ruby-operator">==</span> <span class="ruby-value">0</span>
    <span class="ruby-identifier">t</span>.<span class="ruby-identifier">push</span> <span class="ruby-identifier">rule</span>.<span class="ruby-identifier">size</span>
    <span class="ruby-identifier">t</span>.<span class="ruby-identifier">push</span> <span class="ruby-identifier">rule</span>.<span class="ruby-identifier">target</span>.<span class="ruby-identifier">ident</span>
    <span class="ruby-identifier">t</span>.<span class="ruby-identifier">push</span>(<span class="ruby-keyword">if</span> <span class="ruby-identifier">rule</span>.<span class="ruby-identifier">action</span>.<span class="ruby-identifier">empty?</span>   <span class="ruby-comment"># and @params.omit_action_call?</span>
           <span class="ruby-keyword">then</span> <span class="ruby-value">:_reduce_none</span>
           <span class="ruby-keyword">else</span> <span class="ruby-node">&quot;_reduce_#{idx}&quot;</span>.<span class="ruby-identifier">intern</span>
           <span class="ruby-keyword">end</span>)
  <span class="ruby-keyword">end</span>
  <span class="ruby-identifier">t</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-set_table" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">set_table</span><span
                                class="method-args">(entries, dummy, tbl, chk, ptr)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="set_table-source">
            <pre><span class="ruby-comment"># File racc-1.7.1/lib/racc/statetransitiontable.rb, line 222</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">set_table</span>(<span class="ruby-identifier">entries</span>, <span class="ruby-identifier">dummy</span>, <span class="ruby-identifier">tbl</span>, <span class="ruby-identifier">chk</span>, <span class="ruby-identifier">ptr</span>)
  <span class="ruby-identifier">upper</span> = <span class="ruby-value">0</span>
  <span class="ruby-identifier">map</span> = <span class="ruby-string">&#39;-&#39;</span> <span class="ruby-operator">*</span> <span class="ruby-value">10240</span>

  <span class="ruby-comment"># sort long to short</span>
  <span class="ruby-identifier">entries</span>.<span class="ruby-identifier">sort_by!</span>.<span class="ruby-identifier">with_index</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">a</span>,<span class="ruby-identifier">i</span><span class="ruby-operator">|</span> [<span class="ruby-operator">-</span><span class="ruby-identifier">a</span>[<span class="ruby-value">0</span>].<span class="ruby-identifier">size</span>, <span class="ruby-identifier">i</span>] }

  <span class="ruby-identifier">entries</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">arr</span>, <span class="ruby-identifier">chkval</span>, <span class="ruby-identifier">expr</span>, <span class="ruby-identifier">min</span>, <span class="ruby-identifier">ptri</span><span class="ruby-operator">|</span>
    <span class="ruby-keyword">if</span> <span class="ruby-identifier">upper</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">arr</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">&gt;</span> <span class="ruby-identifier">map</span>.<span class="ruby-identifier">size</span>
      <span class="ruby-identifier">map</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-string">&#39;-&#39;</span> <span class="ruby-operator">*</span> (<span class="ruby-identifier">arr</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">+</span> <span class="ruby-value">1024</span>)
    <span class="ruby-keyword">end</span>
    <span class="ruby-identifier">idx</span> = <span class="ruby-identifier">map</span>.<span class="ruby-identifier">index</span>(<span class="ruby-identifier">expr</span>)
    <span class="ruby-identifier">ptr</span>[<span class="ruby-identifier">ptri</span>] = <span class="ruby-identifier">idx</span> <span class="ruby-operator">-</span> <span class="ruby-identifier">min</span>
    <span class="ruby-identifier">arr</span>.<span class="ruby-identifier">each_with_index</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">item</span>, <span class="ruby-identifier">i</span><span class="ruby-operator">|</span>
      <span class="ruby-keyword">if</span> <span class="ruby-identifier">item</span>
        <span class="ruby-identifier">i</span> <span class="ruby-operator">+=</span> <span class="ruby-identifier">idx</span>
        <span class="ruby-identifier">tbl</span>[<span class="ruby-identifier">i</span>] = <span class="ruby-identifier">item</span>
        <span class="ruby-identifier">chk</span>[<span class="ruby-identifier">i</span>] = <span class="ruby-identifier">chkval</span>
        <span class="ruby-identifier">map</span>[<span class="ruby-identifier">i</span>] = <span class="ruby-value">?o</span>
      <span class="ruby-keyword">end</span>
    <span class="ruby-keyword">end</span>
    <span class="ruby-identifier">upper</span> = <span class="ruby-identifier">idx</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">arr</span>.<span class="ruby-identifier">size</span>
  <span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


                          </div>

                  <div id="method-i-token_table" class="method-detail ">
                            <div class="method-heading">
                              <span class="method-name">token_table</span><span
                                class="method-args">(grammar)</span>
                              <span class="method-click-advice">click to toggle source</span>
                            </div>

                            <div class="method-description">
                              

                              <div class="method-source-code" id="token_table-source">
            <pre><span class="ruby-comment"># File racc-1.7.1/lib/racc/statetransitiontable.rb, line 97</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">token_table</span>(<span class="ruby-identifier">grammar</span>)
  <span class="ruby-identifier">h</span> = {}
  <span class="ruby-identifier">grammar</span>.<span class="ruby-identifier">symboltable</span>.<span class="ruby-identifier">terminals</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">t</span><span class="ruby-operator">|</span>
    <span class="ruby-identifier">h</span>[<span class="ruby-identifier">t</span>] = <span class="ruby-identifier">t</span>.<span class="ruby-identifier">ident</span>
  <span class="ruby-keyword">end</span>
  <span class="ruby-identifier">h</span>
<span class="ruby-keyword">end</span></pre>
                              </div>
                            </div>


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